351686667020 has 48 divisors (see below), whose sum is σ = 837213615840. Its totient is φ = 123019140096.

The previous prime is 351686666987. The next prime is 351686667037. The reversal of 351686667020 is 20766686153.

It is a self number, because there is not a number n which added to its sum of digits gives 351686667020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35590877 + ... + 35600756.

It is an arithmetic number, because the mean of its divisors is an integer number (17441950330).

Almost surely, 2^351686667020 is an apocalyptic number.

It is an amenable number.

351686667020 is an abundant number, since it is smaller than the sum of its proper divisors (485526948820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351686667020 is a wasteful number, since it uses less digits than its factorization.

351686667020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71191674 (or 71191672 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 351686667020 in words is "three hundred fifty-one billion, six hundred eighty-six million, six hundred sixty-seven thousand, twenty".